61470 -- U.S. ZIP code Municipality (1990): PRAIRIE CITY, Illinois All ZIPs for this municipality (1990): 61470 Population (2000): 617 Housing Units (2000): 230 Land area (2000): 20.593275 sq. miles (53.336335 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 20.593275 sq. miles (53.336335 sq. km) Located within: Illinois (IL) Location: 40.614899 N, 90.473456 W